To treat typical organic wastewater efficiently, a novel Fenton-like processes based on ZnO/CuO composite cathode induced by oxygen reduction reaction (ORR) electrocatalysis with enhanced electrocatalytic performance was established successfully. Electrochemical testing investigation indicated that the ZnO/CuO cathode possessed conspicuous redox peak and better conductivity than uncompounded electrodes. Additionally, the removal efficiency of methylene blue and its chemical oxygen demand (COD) reached 96.4% and 70.8% after 120 min, respectively. Next, the feasibility of the material in practical application was also discussed. Subsequently, electrocatalytic principle based on valence state changes of metal elements on the electrode surface were also studied by x-ray photoelectron spectroscopy (XPS). Redox reactions between the active species H₂O₂ and the species Cu⁺ promoting Fenton-like processes were deduced. Namely, the conversion of Cu(I) and Cu(II) on the electrode surface was accompanied by OH generation. The combination of ZnO and CuO improved the surface morphology, increasing the active site of ORR and the yield of H₂O₂, thus greatly enhanced the Fenton-like activity. Finally, the main intermediates were identified by Gas chromatography-mass spectrometer (GC-MS), and possible pathways for dye degradation were proposed. In short, the research of ZnO/CuO cathode provided great significance for heterogeneous Fenton-like degradation and also showed its application potential in water treatment and remediation.

为了有效地处理典型的有机废水，成功建立了基于氧还原反应（ORR）电催化诱导的ZnO / CuO复合阴极的Fenton-like工艺，并提高了电催化性能。电化学测试研究表明，ZnO / CuO阴极具有明显的氧化还原峰，并且比未复合的电极具有更好的电导率。此外，120分钟后，亚甲基蓝的去除效率及其化学需氧量（COD）分别达到96.4％和70.8％。接下来，还讨论了该材料在实际应用中的可行性。随后，还通过X射线光电子能谱（XPS）研究了基于电极表面金属元素的价态变化的电催化原理。活性物种H之间的氧化还原反应推导了₂ O ₂和促进Fenton样过程的Cu ⁺物种。即，电极表面上的Cu（I）和Cu（II）的转化伴随着OH的产生。ZnO和CuO的结合改善了表面形貌，增加了ORR的活性位点和H ₂ O ₂的产率，从而大大增强了Fenton样活性。最后，通过气相色谱-质谱仪（GC-MS）鉴定了主要中间体，并提出了可能的染料降解途径。简而言之，ZnO / CuO阴极的研究为异质类Fenton降解提供了重要的意义，并显示了其在水处理和修复中的应用潜力。